Keyboard



FIG. 1 is a perspective view of the keyboard according to the presentinvention;

FIG. 2 is a top view of the keyboard according to FIG. 1;

FIG. 3 is a back view of the keyboard according to FIG. 1;

FIG. 4 is side view of the keyboard according to FIG. 1; and,

FIG. 5 is front view of the keyboard according to FIG. 1.

The ornamental design for a keyboard, as shown and described.